I recall once seeing a commentary advertised as having been written in prison without recourse to other commentaries and by reliance on the Holy Spirit alone. I doubt whether those last two phrases are complementary. If God has set teachers in the church (1 Cor. 12:28; Eph. 4:11) and many have written books, can good come out of ignoring them, let along parading that ignorance as glorifying God? God's work is never a one-man show. The one who represents the visible part of the iceberg must ever ackowledge his or her debt to others. I like to remember that the First Epistle to the Corinthians was from Paul and Sosthenes (1 Cor. 1:1) and that the Epistle to the Colossians was from Paul and Timothy.